APA引文

Special delivery. Cambridge, MA: Association of Labor Assistants and Childbirth Educators.

Chicago Style Citation

Special Delivery. Cambridge, MA: Association of Labor Assistants and Childbirth Educators.

MLA引文

Special Delivery. Cambridge, MA: Association of Labor Assistants and Childbirth Educators.

警告：这些引文格式不一定是100％准确.